Jean-Luc Aufranc (CNXSoft), Author at CNX Software - Embedded Systems News

February 3, 2015 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

Vidonn X6 Activity Tracker Promises Up to 15 days Battery Life

I reviewed Vidonn X5 fitness tracker last yet, and I found many issues or letdowns: battery life is too short (2 days), the digits are much smaller than advertized, the screen cannot be read under direct sunlight, a button must be pressed to check the time, the smartband is not as waterproof as advertized, and the Android app is a disaster. Despite all these issues, I still wear it everyday, as it helps me walk or run a bit more if I have not reached my daily target. The company has now release a new model Vidoon X6 that I discovered today on DealExtreme for $33.90. Vidonn X6 specifications: MCU/Memory – Unknown Display – 0.88″ OLED display (vs 0.49″ for X5) Connectivity – Bluetooth 4.0 LE and micro USB Battery – 45 mAh Li-battery (vs 40 mAh) good for 15 days in standby mode. IP Rating – IP65 (Dust-proof and […]

February 3, 2015February 3, 2015 by Jean-Luc Aufranc (CNXSoft) - 3 Comments

OpenMV is an Open Source Hardware VGA Camera Controllable with Python Scripts (Crowdfunding)

Recently I’ve seen some activity about tiny cameras for makers, including Linux based SinoVoIP BPI-D1 recording up to 720p30 videos, and an upcoming mini camera for VoCore Wi-Fi module. There’s now another project called OpenMV, and open source camera for machine vision applications based on STMicro STM32, recording up to VGA resolution at 20 fps, and controlled using Micro Python scripts. OpemMV camera specifications: MCU – STM32F427, 180MHz, 225 DMIPS, 256K SRAM, 2M Flash, DMA/FPU/DSP/DCMI/SDIO/2D Acceleration Camera – 2MP OV2640 sensor with interchangeable M12 lens, 2x IR LEDS Storage – uSD interface: SDIO (4-bit mode) Expansions – 2x headers with USART, SPI, I2C, PWM, ADC/DAC, GPIOs, PWM and power signals USB – micro USB 2.0 Full Speed port Power Supply – 5V via USB; Current draw is approximately 140mA, steady state Dimensions – 4.57 x 3.56 cm The camera can be controlled using (Micro) Python scripts. with the project’s OpenMV […]

February 3, 2015February 3, 2015 by Jean-Luc Aufranc (CNXSoft) - 14 Comments

Android 5.0 Lollipop SDK for Amlogic Processors and Image for MK808B Plus

Amlogic has just released Android 5.0 SDK for Amlogic S805, S802, and S812 processors on their OpenLinux website, but before you get too excited, this is only available people who have signed an SLA with the company, or somehow got a username/password to their git server. Although most people can’t access the SDK, it still means that popular Amlogic S8xx devices are likely to be upgraded to Android 5.0 in the weeks or months ahead. The company has not released any Android 5.0 SDK for older AML-8726M? processors however, so apart from WeTek Play, I would not expect any other Amlogic single or dual core devices to get a Lollipop treat. If you own a MK808B Plus TV dongle, you don’t even need to wait, as WeTek ported Android 5.0, more exactly CyanogenMod 12, to the cheap HDMI TV Stick for evaluation, and since finally they don’t intend to design […]

February 2, 2015November 24, 2015 by Jean-Luc Aufranc (CNXSoft) - 115 Comments

Raspberry Pi 2 / ODROID C1+ Development Boards Comparison

Raspberry Pi 2 Model B board has just been released, and although it’s not a direct answer to ODROID-C1, as Broadcom started the design for BCM2836 SoC for RPI2 a long time ago, both low cost development boards have similar specifications, with a quad core processor, 1GB RAM, Ethernet, and four USB ports, as well as the exact same price: $35. So I’ve decided to compare both in details to find out the actual differences, and which one may be more suitable to a particular application. Let’s get straight to the comparison table. [Updated on November 24 to use ODROID C1+ instead of ODROID C1] Hardkernel ODROID C1+ Raspberry Pi 2 Model B Comment Processor Amlogic S805 quad core Cortex A5 @ 1.5 GHz (Overclockable to 1.7 GHz or more) Broadcom BCM2836 quad core Cortex A7 @ 900 MHz (Overclockable to 1.1GHz or more) Despite the architecture advantage for Cortex […]

February 2, 2015May 29, 2017 by Jean-Luc Aufranc (CNXSoft) - 14 Comments

H88 HummingBird Development Board Powered by Allwinner A80 Comes with 4GB RAM, Built-in GPS, 4G LTE Support

Merrii Technology is having some fun churning out Allwinner A80 development boards, and after A80 OptimusBoard, H8 Hummingbird, here comes H88 HummingBird. The new board is somewhat similar to H8, but is quite larger, and features 4GB RAM, built-in GPS, and a few other goodies. H88 HummingBird specifications: SoC – AllWinner A80 octa-core processor with 4x Cortex 15, 4x Cortex A7 cores in big.LITTLE configuration with Imagination Technologies PowerVR GC6230 GPU compliant with OpenGL ES 3.0/2.0/11, OpenCL 1.1, and DirectX 9.3 System Memory – 4GB DDR3 Storage – 8GB internal storage (Hynix H27UCG8T2BTRBC), micro SD slot up to 32 GB Video Output/ Display Interfaces HDMI 1.4 up to 4K UHD resolution RGB/LVDS interface EDP LCD + TP interface MIPI LCD interface VGA output Audio – HDMI, headphone jack,LINE-IN, Camera I/F – Parallel and MIPI CSI interface. Integrated 16MP camera Connectivity – Gigabit Ethernet (Realtek RTL8211D/E), dual band Wi-Fi 802.11 b/g/n […]

February 2, 2015May 1, 2016 by Jean-Luc Aufranc (CNXSoft) - 60 Comments

Raspberry Pi 2 Model B Features Broadcom BCM2836 Quad Core Processor

The Raspberry Pi foundation has finally released an upgraded version of the Raspberry Pi. Raspberry Pi 2 model B features much of the same ports and form factor as Raspberry Pi Model B+, by replaces Broadcom BCM2835 ARM11 processor @ 700 MHz with a much faster Broadcom BCM2836 quad core ARMv7 processor @ 900 MHz, and with an upgrade to 1GB RAM. Raspberry Pi 2 Model B specifications: SoC – Broadcom BCM2836 quad core Cortex A7 processor @ 900MHz with VideoCore IV GPU System Memory – 1GB LPDDR2 (PoP) Storage – micro SD card slot (push release type) Video & Audio Output – HDMI and AV via 3.5mm jack. Connectivity – 10/100M Ethernet USB – 4x USB 2.0 ports, 1x micro USB for power Expansion 2×20 pin header for GPIOs Camera header Display header Power – 5V via micro USB port. Dimensions – 85 x 56 mm I could not […]

February 2, 2015 by Jean-Luc Aufranc (CNXSoft) - 14 Comments

OneBoard PRO+ is an Android Mechanical Keyboard Powered by Rockchip RK3288 SoC

When Coolship keyboard computer was announced in 2013, it caught the attention of some people, but unfortunately the crowdfunding campaign was a disaster despite reaching their funding target, and few people, if any, ever received the device. But if you are a nostalgic and still would like a Commodore C64-like computer in a keyboard, a company call Acooo has designed OneBoard PRO+ based on Rockchip RK3288 processor and with a backlit mechanical keyboard housed in an aluminum case. OneBoard PRO+ specifications: SoC – Rockchip RK3288 Quad Core Cortex A17 up to 1.8GHz with ARM Mali-T764 GPU supporting OpenGL ES1.1/2.0/3.0, Open VG1.1, OpenCL, DirectX11 System Memory – 2GB DDR3 Storage – 16 GB eMMC flash + SD card slot up to 32GB Keyboard – 83-keys QWERTY keyboard with backlit keys made of ABS plastic Video Output / Input – HDMI output, DVI input Audio Output / Input – HDMI, 3.5 mm […]

February 1, 2015October 5, 2021 by Jean-Luc Aufranc (CNXSoft) - 18 Comments

Connect Speakers to Any mini PCs with a $1 USB Sound Card

Last year, I made a poll to find out what kind of audio output people used with mini PCs, and one person commented “USB audio to av receiver”, but at the time I did not investigate. Recently somebody asked me for mini PCs with audio output for stereo speakers, and I recommended something like MINIX NEO X6 with a dedicated 3.5mm audio jack, but I’ve just discovered USB sound cards with stereo output and microphone input are incredibly cheap, even less than $1 shipped on Aliexpress, and just above $1 on Ebay. The features for the model above are listed as follows: Real USB Plug & Play Drive 2-channelsspeakers directly Support 3D positional sound and virtual 5.1 channels sound track Powered via USB port Digital Class-B power Amplifier inside Speaker Shifter – 5.1x earphone, 2 speaker virtual theater Software Value-added for Music: 27x Environmont Effects, 3x Environment sizes, 10-Band/Pre-set Equalizer […]